The legislation would provide an extra $65 million for roads and schools in the fiscal year that begins July 1.
The campaign is worried the winner of the national popular vote may not match up with the winner of Colorado’s majority of voters.
Various education and oil and gas groups spent upwards of $4 million to gather signatures and organize volunteers.
Amendment 74 would to allow Coloradans to make financial claims if their property is devalued because of government action.
This will be the first time that voters across the state get a chance to weigh in on a potential oil and gas regulation.
At its heart, Amendment 74 would adjust how “takings claims” work under Colorado law.
Some people call it harassment. Others say it’s fair game under the First Amendment.
Two weeks after an Anadarko contribution, Protect Colorado spent $550,000 on signature gathering for the upcoming election.
Amendment 71 requires petition signatures from at least 2 percent of registered voters in each state Senate district and a current total of 98,000 valid signatures statewide.